Hello,

I have some videos optain on internet and i just want removed some part of this viedos.
And for the rendering i have a problem because the quality is bad and if i take a strong format the result is bigger than the complete original.

So i would like to just cut the video and not re encoding it
How can I doing this ?

With the command : mplayer -identify -frames 0 toto.mp4 I have for result :


MPlayer SVN-r1.0~rc3+svn20090426-4.4.3 (C) 2000-2009 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing toto.mp4.
libavformat file format detected.
ID_VIDEO_ID=0
[lavf] Video stream found, -vid 0
ID_AUDIO_ID=1
[lavf] Audio stream found, -aid 1
VIDEO: [H264] 640x360 0bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
ID_FILENAME=toto.mp4
ID_DEMUXER=lavfpref
ID_VIDEO_FORMAT=H264
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=640
ID_VIDEO_HEIGHT=360
ID_VIDEO_FPS=25.000
ID_VIDEO_ASPECT=1.7778
ID_AUDIO_FORMAT=255
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
ID_LENGTH=549.15
ID_SEEKABLE=1
ID_CHAPTERS=0
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
[VO_TDFXFB] Can't open /dev/fb0: Permission denied.
[VO_3DFX] Unable to open /dev/3dfx.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
ID_VIDEO_CODEC=ffh264
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
ID_AUDIO_BITRATE=128000
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
ID_AUDIO_CODEC=faad
Starting playback...


Exiting... (End of file)
ID_EXIT=EOF

"So i would like to just cut the video and not re encoding it
How can I doing this ?"

You can not do this with Kdenlive.

For cutting only, without recoding, use "avidemux", set video codec to "copy".

For mpeg2, "gopchop" can do it. I have used it to remove commercials from off the air (satellite) recorded stuff.

There is also "dvbcut", but I have never tried it.